The table shows the distribution of the distance (in km) ...
The table shows the distribution of the distance (in km) covered by 40 hunters while hunting.
| Distance(km) | 3 | 4 | 5 | 6 | 7 | 8 |
| Frequency | 5 | 4 | x | 9 | 2x | 1 |
If a hunter is selected at random, find the probability that the hunter covered at least 6km.
35
25
38
940
Correct answer is A
5+4+x+9+2x+1 = 40
19+3x = 40
3x = 21
x = 7
| Distance(km) | 3 | 4 | 5 | 6 | 7 | 8 |
| Frequency | 5 | 4 | 7 | 9 | 14 | 1 |
The probability that the hunter covered at least 6km, means the hunter covered either 6km or 7km, or 8km.
24 hunters covered at least 6km
| 24
40 |
= | 3
5 |
Given that f(x)=x+12, find f1(−2)....
Integrate (x−1x)2 with respect to x....
Find the coefficient of x4 in the expansion of (1−2x)6...
Given that the straight lines kx−5y+6=0 and mx+ny−1=0 are parallel, find a relat...
An exponential sequence (G.P.) is given by 92,34,18,....Find its sum ...
Given that r = (10 N , 200º) and n = (16 N , 020º), find (3r - 2n). ...
Consider the statements: x: Birds fly y: The sky is blue Which of the following statements ...
An object is thrown vertically upwards from the top of a cliff with a velocity of 25ms−1. Fin...